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VOLUME 28 , ISSUE 1 ( January, 2024 ) > List of Articles

Original Article

Acute Kidney Injury in Patients Undergoing Extracorporeal Membrane Oxygenation: A Retrospective Cohort Study

Aswin Surjit, Bipi Prasannan, Jobin Abraham, Anuroop Balagopal, Vavullipathy Narayanan Unni

Keywords : Acute kidney injury, Acute respiratory distress syndrome, Continuous renal replacement therapy, Cohort study, Extracorporeal membrane oxygenation, Renal replacement therapy

Citation Information : Surjit A, Prasannan B, Abraham J, Balagopal A, Unni VN. Acute Kidney Injury in Patients Undergoing Extracorporeal Membrane Oxygenation: A Retrospective Cohort Study. Indian J Crit Care Med 2024; 28 (1):26-29.

DOI: 10.5005/jp-journals-10071-24612

License: CC BY-NC 4.0

Published Online: 30-12-2023

Copyright Statement:  Copyright © 2024; The Author(s).


Aims and background: Extracorporeal membrane oxygenation (ECMO) is a mode of extracorporeal therapy to support oxygenation of patients with severe cardiac or respiratory failure. Studies have shown that acute kidney injury (AKI) can worsen the outcome in these patients. This study aims to assess the incidence and outcome of AKI in patients on ECMO support. Materials and methods: This retrospective study included 64 patients who underwent ECMO for more than 24 hours. Patients who died within 48 hours of initiation of ECMO and patients with end-stage renal disease (ESRD) on maintenance hemodialysis were excluded. Acute kidney injury was diagnosed and categorized according to the Kidney Disease Improving Global Outcomes (KDIGO) criteria. Results: Of the 64 patients studied, 38 patients (59.38%) developed AKI and 17 patients (44.73%) among them developed AKI within 24 hours of initiation of ECMO. Age, Acute Physiology and Chronic Health Evaluation (APACHE-II) score, hypertension, use of nephrotoxic agents, inotropic support, and poor cardiac function were the risk factors associated with the development of AKI. Diabetes mellitus, type of ECMO used, and duration of ECMO were not found to be risk factors for AKI. Renal replacement therapy was initiated in 31 patients (81.58%). The overall mortality in the whole group was 67.19%, while it was 81.58% among the patients with AKI. Conclusion: Acute kidney injury was found to be an independent risk factor for mortality in patients on ECMO. Early identification of the risk factors for AKI and management may help to improve the survival rate. Clinical significance: The occurrence of AKI among patients on ECMO support increases the risk of mortality significantly. Hence, measures to prevent AKI, as well as early detection and appropriate management of AKI, would improve patient outcomes.

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